S-90402A706 M4 x 6 mm ASME B18.13.1M Steel Pan Head Phillips Screws with External-Tooth Lock Washer
Steel Pan Head Phillips Screws with External-Tooth Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior vibration resistance through the integrated external-tooth lock washer, preventing loosening in high-stress environments
- Enhanced corrosion protection with zinc-plated steel construction, extending service life in industrial settings
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and mechanical stress
- Optimized drive engagement with Phillips No. 2 drive for efficient installation and reduced cam-out risk
- Secure coarse thread design with Class 6g fit provides quick assembly and consistent clamping force
- Full threading along the 6mm length allows for maximum thread engagement in various material thicknesses
- Rockwell B73 hardness maintains thread integrity and prevents stripping during repeated use
Professional Applications & Engineering Value
These M4 metric screws with zinc-plated steel construction and external-tooth lock washer address critical industrial fastening challenges where vibration-induced loosening compromises assembly integrity. The coarse thread (0.7mm pitch) with Class 6g tolerance ensures rapid installation in production environments while maintaining precise fit in metric threaded applications. The combination of 60,000 psi tensile strength and Rockwell B73 hardness provides exceptional durability for machinery, equipment frames, and automotive components subjected to dynamic loads. The rounded pan head profile with Phillips drive offers streamlined installation without snagging, while the integrated locking mechanism eliminates the need for separate anti-vibration components, reducing inventory complexity and assembly time in manufacturing operations.
Specification Summary & Compliance
This fully threaded M4 x 0.7mm x 6mm screw features Class 6g thread fit per metric standards with coarse thread spacing. Manufacturing complies with ASME B18.13.1M specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety and restricted substances.
